Threat Descriptons



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Aliases :

Net-Worm:W32/Koobface.gen, Net-Worm.Win32.Koobface, W32/Koobface.worm (McAfee), W32.Koobface (Symantec), Worm:Win32/Koobface (Microsoft)


Net-Worm:W32/Koobface.gen is the generic detection of Net-Worm:W32/Koobface variants. Koobface uses online social networks - such as Facebook, Hi5, Friendster, Myspace and so on - to spread.

Security programs use generic detections that look for broad patterns of code or behavior to identify similar programs or files. If you suspect the file was incorrectly detected, go to: Removal: Suspect a file is incorrectly detected (a False Positive)?.


Based on the settings of your F-Secure security product, it will either move the file to the quarantine where it cannot spread or cause harm, or remove it.

A False Positive is when a file is incorrectly detected as harmful, usually because its code or behavior resembles known harmful programs. A False Positive will usually be fixed in a subsequent database update without any action needed on your part. If you wish, you may also:

  • Check for the latest database updates

    First check if your F-Secure security program is using the latest updates, then try scanning the file again.

  • Submit a sample

    After checking, if you still believe the file is incorrectly detected, you can submit a sample of it for re-analysis.

    Note: If the file was moved to quarantine, you need to collect the file from quarantine before you can submit it.

  • Exclude a file from further scanning

    If you are certain that the file is safe and want to continue using it, you can exclude it from further scanning by the F-Secure security product.

    Note: You need administrative rights to change the settings.

Technical Details

For a representative example of Koobface, please see the follow description:

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